198064171 has 8 divisors (see below), whose sum is σ = 206125920. Its totient is φ = 190084608.

The previous prime is 198064147. The next prime is 198064183. The reversal of 198064171 is 171460891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198064171 - 2²¹ = 195967019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198064171.

It is not an unprimeable number, because it can be changed into a prime (198067171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15606 + ... + 25291.

It is an arithmetic number, because the mean of its divisors is an integer number (25765740).

Almost surely, 2^198064171 is an apocalyptic number.

198064171 is a deficient number, since it is larger than the sum of its proper divisors (8061749).

198064171 is a wasteful number, since it uses less digits than its factorization.

198064171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41093.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 198064171 is about 14073.5273119428. The cubic root of 198064171 is about 582.9106277155.

The spelling of 198064171 in words is "one hundred ninety-eight million, sixty-four thousand, one hundred seventy-one".